Models: CDU CDX 2CDU 2CDX - Pump Supply Inc · CDU, 2CDU, CDX, 2CDX model pumps may be used for the...
Transcript of Models: CDU CDX 2CDU 2CDX - Pump Supply Inc · CDU, 2CDU, CDX, 2CDX model pumps may be used for the...
Instruction and Operation Manual
M o d e l s :C D U*
C D X 2 C D U*
2 C D X
Certified to NSF/ANSI 61, ANNEX G
Ebara Fluid Handling Ebara International Corporation
* NSF/ANSI 61 Annex G listed models: CDU, 2CDU
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 2(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
iMPOrTanT SaFETY inSTrUCTiOnS
rules for Safe installation and Operation
general Description
Contents
Section Page
Safety Instructions ...........................................................................................................2
General Description .........................................................................................................2
Installation........................................................................................................................3
Selection charts ...............................................................................................................4
Specifications...................................................................................................................5
Sectional view..................................................................................................................9
Mounting Instructions.....................................................................................................13
Maintenance ..................................................................................................................14
CDU/CDX assembly Instructions ..................................................................................15
assembly/Disassembly ..................................................................................................16
Troubleshooting .............................................................................................................17
1. read these rules and instructions carefully. Failure to follow them could cause serious bodily injury and/or property damage.
2. Check your local codes before installing. You must comply with their rules
3. For maximum safety, this product should be connected to a grounded circuit equipped with a ground fault interrupter device.
4. before installing this product, have the electrical circuit checked by an electrician to make sure it is properly grounded.
5. before installing or servicing your pump, bE CErTaIN pump power source is disconnected.
6. Make sure the line voltage and frequency of the electrical current supply agrees with the motor wiring. If motor is dual
voltage type, bE SUrE it is wired correctly for your power supply.
7. Complete pump and piping system MUST be protected against below freezing temperature. Failure to do so could
cause severe damage and void the warranty.
8. avoid system pressures that may exceed one and a half times the operating point selected from the pump performance curve.
9. Do not run your pump dry. If it is, there will be damage to the pump seal.
CDU, 2CDU, CDX, 2CDX model pumps may be used for the pumping of clean water and other fluids compatible with 304stainless steel. These pumps are not to be used for handling dirty water or water with suspended solids, water containingacids, or corrosive liquids, seawater, and flammable or dangerous liquids. Please see pump specifications for fluid tempera-ture ranges. These pumps are not designed to run without water.
2CDU/2CDXU model pumps and CDU/CDXU model pumps are similar in function and construction. The differencesbetween the models include:
• single impeller vs. twin impeller• flow rate• heads• weight• dimensions.
Please see the technical specifications in this manual for more detailed descriptions.
Warning
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 3(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
PaCKaGE CONTENTS1. be sure all parts have been furnished and that nothing has been damaged in shipment.2. The catalog lists all parts included with package. a packing list packed with pump, also lists contents.3. OPEN PaCKaGES aND MaKE THIS CHECK bEFOrE GOING TO JObSITE.
PIPING – Pipes must line up and not be forced into position by unions. Piping should be independently supported near thepump so that no strain will be placed on the pump casing. Where any noise is objectionable, pump should be insulated fromthe piping with rubber connections. always keep pipe size as large as possible and use a minimum of fittings to reduce friction losses.
SUCTION PIPING – Suction pipe should be direct and as short as possible. It should be at least one size larger than suctioninlet tapping and should have a minimum of elbows and fittings (5 to 6 pipe diameters of straight pipe before inlet is recommended).The piping should be laid out so that it slopes upward to pump without dips or high points so that air pockets are eliminated.The highest point in the suction piping should be the pump inlet except where liquid flows to the pump inlet under pressure.
The suction pipe must be tight and free of air leaks or pump will not operate properly.
DISCHarGE PIPING – Discharge piping should never be smaller than pump tapping and should preferably be one size larger. a gate valve should always be installed in discharge line for throttling if capacity is not correct. To protect the pump fromwater hammer and to prevent backflow, a check valve should be installed in the discharge line between the pump and gate valve.
ELECTrICaL CONNECTIONS – be sure motor wiring is connected for voltage being used. Unit should be connected to aseparate circuit. a fused disconnect switch or circuit breaker must be used in this circuit. Wire of sufficient size should beused to keep voltage drop to a maximum of 5%.
Single phase motors have built-in overload protection. Flexible metallic conduit should be used to protect the motor leads.
PrIMING – The pump must be primed before starting. The pump casing and suction piping must be filled with water beforestarting motor. remove vent plug in top of casing while pouring in priming water. a hand pump or ejector can be used forpriming when desired. When water is poured into pump to prime, remove all air before starting motor.
STarTING – When the pump is up to operating speed, open the discharge valve to obtain desired capacity or pressure. WARNING! DO NOT ALLOW THE PUMP TO RUN WITH THE DISCHARGE VALVE TIGHTLY CLOSED. IF THE PUMPRUNS FOR AN EXTENDED PERIOD OF TIME WITHOUT LIQUID BEING DISCHARGED, THE LIQUID IN THE PUMP CASECAN GET EXTREMELY HOT CAUSING SEVERE DAMAGE TO THE PUMP AND POSSIBLY CAUSE INJURY TO PEOPLE.
rOTaTION – all single phase motors are single rotation and leave factory with proper rotation. Three phase motors shouldbe checked to ensure proper rotation
FrEEZING – Care should be taken to prevent the pump from freezing during cold weather. It may be necessary, when there isany possibility of this, to drain the pump casing when not in operation. Drain by removing the pipe plug in the bottom of the casing.
rOTarY SEaL – PrO STEEL pumps are fitted only with rotary seal. This seal is recommended for LIQUIDS free from abrasives.
LOCaTION OF UNIT – The pump should be installed as near to the liquid source as is practical so that the static suctionhead (vertical distance from the center line of the pump to water level) is maximized, and so that a short, direct suction pipemay be used. The capacity of a centrifugal pump is reduced when the unit is operated under a high suction lift. The pipingshould be as free from turns and bends as possible, as elbows and fittings greatly increase friction loss. Place the unit so thatit is readily accessible for service and maintenance and on a solid foundation, which provides a rigid and vibration-free support.Protect the pump against flooding and excess moisture.
rules for Safe installation and Operation
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 4(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Model CDU Selection chart Synchronous Speed 3450 rPM
4 5 6 8 10 15 20 30 40 50 60 80 100
50M
40
30
20
15
10
8
Ft.MM200
150
100
80
60
50
40
30
20
TOTA
L H
EA
D
CAPACITY IN GPM
l/MIN
20 30 40 50 60 80 100 150 200 300
70/3-1½HP
70/5-2HP
70/1-¾HP
120/3- 1½HP
120/1-1HP
120/5-3HP
200/5- 3HP
200/3- 3HP
200/1- 1½HP
Model CDX Selection chart Synchronous Speed 3600 rPM
20 30 40 50 60 80 100 150 200 300
70M
60
50
40
35
30
8070605040302015108765490
100
120
150
170
200
220
250Ft.
l/MIN
CAPACITY IN GPM
TOTA
L H
EA
D
2CDXU 70/206-2HP 2CDU 70/206-2HP
2CDXU 200/506-5HP2CDU 200/506-5HP
2CDXU 120/306 -3HP2CDU 120/306 -3HP
2CDXU 70/306-3HP2CDU 70/306-3HP
Model 2CDU/2CDX Selection chart Synchronous Speed 3600 rPM
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 5(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Specifications – CDX
Standard Optional
SizeSuction 11/4'' NPT Thread
11/2'' NPT Thread
Discharge 1'' NPT Thread
Range of HP 3/4 HP to 3 HP
Range of PerformanceCapacity 5.5 to 68 GPM at 3600 rPMHead 40 to 130 feet at 3600 rPM
Liquid handled
Type of liquid Clean water
Temperature Maximum: 140°F (60°C)Working pressure Maximum: 8 PSI
Materials
Casing 304 Stainless Steel
Impeller (closed type) 304 Stainless Steel
Shaft 303 Stainless Steel
bracket aluminum
Shaft Seal Mechanical Seal Consult factory for additionalCarbon/Ceramic/Nbr seal options
Direction of Rotation Clockwise when viewed from motor end
MotorType TEFC/IP55
Speed 60 Hz, 3600 rPM (2 poles)
Single Phase 230V
Three Phase 230/460V
Motor Protection built-in overload protection (single phase)
bearing Sealed ball bearing
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 6(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Standard Optional
SizeSuction CDU70 – 11/4'' NPT thread
CDU120 – 11/4'' NPT threadCDU200 – 11/2'' NPT thread
Discharge 1'' NPT thread
Range of HP 3/4 HP to 3 HP
Range of PerformanceCapacity 5.5 to 95 GPM at 3450 rPMHead 26 to 144 feet at 3450 rPM
Liquid handled
Type of liquid Water
Temperature 212°F (100°C) Max. 250°F (121°C) with optional
high temperature seal
Max. working pressure 125 PSI (9 bar)
Materials
Casing 304L Stainless Steel
Impeller (closed type) 304L Stainless Steel
Shaft Stainless Steel
bracket aluminum
Shaft Seal Mechanical Seal – Type 21 High temperature versionMild chemical version
Direction of Rotation Clockwise when viewed from motor end
MotorType NEMa 56J Frame
Speed 60 Hz, 3450 rPM (2 poles) 60Hz, 1725 rPM (4 poles)
Single Phase TEFC – 3/4 HP to 3 HP
ODP – 3/4 HP to 3 HP, 115/230V Explosion proof – consult factory
Three Phase TEFC – 3/4 HP to 3 HP Washdown duty – consult factory
ODP – 3/4 HP to 3 HP, 208-230/460V
bearing ball bearing
Motor Protection built-in overload protection (single phase)
Specifications – CDU
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 7(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Specifications – 2CDXU
Standard Optional
SizeSuction 2CDXU70 – 11/4'' NPT Thread
2CDXU120 – 11/4'' NPT Thread2CDXU200 – 11/2'' NPT Thread
Discharge 1'' NPT Thread
Range of HP 2 HP to 5 HP
Range of PerformanceCapacity 5.5 to 66 GPM at 3600 rPMHead 98 to 245 feet at 3600 rPM
Liquid handled
Type of liquid Clean water
Temperature Maximum: 212°F (100°C)Working pressure Maximum: 125 PSI (9 bar)
Materials
Casing 304L Stainless Steel
Impeller (closed type) 304L Stainless Steel
Shaft 304L Stainless Steel
bracket aluminum or Cast iron
Shaft Seal Mechanical Seal – Carbon/Ceramic Consult factory for optional seal types
Direction of Rotation Clockwise when viewed from motor end
MotorType TEFC/IP55
Speed 60 Hz, 3450 rPM (2 poles)
Three Phase 230/460V
Motor Casing aluminum
bearing ball bearing
Ebara Fluid Handlingwww.pumpsebara.com 8(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Specifications – 2CDU
Standard Optional
SizeSuction 2CDU70 – 11/4'' NPT Thread
2CDU120 – 11/4'' NPT Thread2CDU200 – 11/2'' NPT Thread
Discharge 1'' NPT Thread
Range of HP 2 HP to 5 HP
Range of PerformanceCapacity 5.5 to 66 GPM at 3600 rPMHead 98 to 245 feet at 3600 rPM
Liquid handled
Type of liquid Clean water
Temperature Maximum: 212°F (100°C) Maximum: 250°F (121°C) with optional high temperature seal
Working pressure Maximum: 125 PSI (9 bar)
Materials
Casing 304L Stainless Steel
Impeller (closed type) 304L Stainless Steel
Shaft 304L Stainless Steel
bracket Cast iron
Shaft Seal Mechanical Seal – Type 21 High temperature versionMild chemical version
Direction of Rotation Clockwise when viewed from motor end
MotorType NEMa 56J Frame
Speed 60 Hz, 3450 rPM (2 poles)
Single Phase TEFC – 2 HP to 5 HP
ODP – 2 HP to 3 HP, 115/230V Explosion proof – consult factory
Three Phase TEFC – 2 HP to 5 HP Washdown duty – consult factory
ODP – 2 HP to 3 HP, 208-230/460V
Motor Protection built-in overload protection (single phase)
bearing ball bearing
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 9(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
001
003
004
007
011
014
015
023
024
026
032
034
052
053
073
075
077
092
093
Casing
Motor bracket
Casing cover
Impeller
Mechanical seal
Fan
Fan Cover
Capacitor
Priming/Drain plug
O-Ring
Key
Impeller nut
Terminal box
Terminal cover
Casing ring
Washer
O-ring
Lip seal
Lip seal
304 Stainless
Cast Aluminum
304 Stainless
304 Stainless
Carbon/Ceramic
Polypropolene
Steel
Single Phase only
303 Stainless
NBR
304 Stainless
304 Stainless
Plastic
Plastic
NBR
304 Stainless
NBR
–
–
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
2
2
1
1
Location no. Part name Material no. for 1 Unit
Exploded view – CDX
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 10(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
001
011
018
021
048
107*
111
115
120-1
120-2
120-3
120-4
129
135-1
135-2
160
212-2
800
Casing
Casing cover
Bracket
Impeller
Impeller nut
Casing ring (*CDU 70 series only)
Mechanical seal
O-Ring
Bolt
Bolt
Bolt
Bolt
Nut
Washer
Washer
Base
Plug
Motor
304L Stainless
304L Stainless
Aluminum
304L Stainless
304L Stainless
Viton
—
Viton
304L Stainless
304L Stainless
304L Stainless
304L Stainless
304L Stainless
304L Stainless
Aluminum
Steel
304L Stainless
—
1
1
1
1
1
1
1
1
8
2
4
1
1
8
2
1
2
1
Part no. Part name Material no. for 1 Unit
001
135-1
135-2
120-1
212-2
115
048
021
111
011
018
800
120-3
120-2
120-4
129
160
107*
Sectional view – CDU
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 11(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
1
4
7
8
9
11
14
15
23*
24
26
27
32
34
52
53
72
73
75
77
79
92
93
102
103
105
Casing
Casing cover
Impeller
Impeller
Diffuser
Mechanical seal
Fan
Fan cover
Capacitor*
Priming plug
O-Ring
O-Ring
Key
Impeller nut
Terminal box
Terminal cover
Casing ring
Casing ring
Washer
O-ring
Spacer diffuser
Lip seal
Lip seal
Suction cover
Conveyor cover
Sleeve
304 Stainless
304 Stainless
304 Stainless
304 Stainless
304 Stainless
Carbon/Ceramic
Polypropolene
Steel
*Single phase only
303 Stainless
Viton
Viton
304 Stainless
304 Stainless
Polypropolene
Polypropolene
Viton
Viton
304 Stainless
Viton
304 Stainless
–
–
304 Stainless
304 Stainless
304 Stainless
1
1
1
1
1
1
1
1
1
2
1
1
2
1
1
1
1
1
2
2
1
1
1
1
1
1
Location no. Part name Material no. for 1 Unit
*Note: Capacitor for Single Phase ONLY
Exploded view – 2CDX
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 12(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Sectional view – 2CDU
001
003
004
006
007
008
009
011
024
026
027
032
034
072
073
075
077
079
102
103
105
142
Casing
Motor bracket
Casing cover
Shaft extension
Impeller
Impeller
Diffuser
Mechanical Seal Type 21
Priming plug/Drain plug
O-Ring
O-Ring
Key
Impeller nut
Casing ring
Casing ring
Washer
O-ring
Spacer diffuser
Suction cover
Conveyor cover
Sleeve
Base
304 Stainless
Cast Aluminum
304 Stainless
304 Stainless
304 Stainless
304 Stainless
304 Stainless
Carbon/Ceramic
303 Stainless
Viton
Viton
Stainless
304 Stainless/Nylon
Viton
Viton
304 Stainless
Viton
304 Stainless
304 Stainless
304 Stainless
304 Stainless
Steel
1
1
1
1
1
1
1
1
2
1
1
2
1
2
1
2
2
1
1
1
1
1
Location no. Part name Material no. for 1 Unit
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 13(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Mounting instructions
Mounting the assemblyDo not operate the pump unless the assembly is securely and properly mounted.
Misalignment of the motor/pump assembly or not having the assembly reasonably level may cause pump vibration,
noisy operation, fluid leaks, or air leaks and air locks in the suction pipe.
1. Place the motor/pump assembly in its intended operating position.
2. Level the pump through the centerline of the motor/pump assembly suction port.
initial OperationMake certain the motor is not connected to a power source until the motor is properly assembled and mounted.
Serious personal injury or damage to the motor/pump assembly could occur if the motor is activated improperly.
Only certified electricians should make electrical connections.
1. Prime the pump by adding fluid to the volute case through the top plug.To properly prime the pump, venting
may be required.
2. Check the nameplate on the motor to determine the correct wiring procedure for your intended power source
and if the motor is single or three phase. Connect the motor to a power source by following the wiring proce-
dure
on the motor's nameplate.
note:a. Single phase motors are typically dual voltage. In some cases, three phase motors are tri-voltage. Check the
nameplate and follow the proper wiring procedure for the voltage you are using. Improperly wiring the motor
could result in damage to the motor.
b. Three phase motors require a control box. Install overload protection to help prevent motor damage.
c. Depending on the wiring, three phase motors may start in reverse. Interchange any two power leads to
change the starting direction and pump rotation.
• Always follow correct operating procedures.
• Always disconnect the motor/pump assembly from all power sources before servicing the pump or motor.
• Periodically check all power connections, bolts, screws, and the motor's mounting.
• Failure to properly follow assembly and operating instructions could result in damage to the pump and motor.
• Failure to properly install the impeller and impeller nut could result in damage to the pump and could cause
serious personal injury.
Warninginitial OperationMake certain the motor is not connected to a power source until the motor is properly assembled and mounted.
Serious personal injury or damage to the motor/pump assembly could occur if the motor is activated improperly.
Only certified electricians should make electrical connections.
1. Prime the pump by adding fluid to the volute case through the top plug.To properly prime the pump, venting
may be required.
2. Check the nameplate on the motor to determine the correct wiring procedure for your intended power
source and if the motor is single or three phase. Connect the motor to a power source by following the wiring
procedure on the motor's nameplate.
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 14(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
ServiceKeep ventilation openings clear of extraneous objects which may hinder free flow of air thru motor. Motor bearings are lubricatedduring manufacture. additional lubrication is not required during their normal lifetime.
Maintenance
Disassembly instructions – CDU, CDX, 2CDU, 2CDX
all pumping parts can be removed from case without disturbing the piping.
POWEr SUPPLY – Open the power supply switch contacts and remove fuses. Disconnect the electrical wiring from the motor.
VOLUTE CaSE(a) Drain pump case by removing drain plugs.(b) remove the bolts securing volute case to pump bracket.(c) Pry volute case from casing cover with a screwdriver.
IMPELLErCDU – Hold the motor shaft with a screwdriver in the shaft end slot. remove the impeller nut. Grasp and turn the impellercounterclockwise (as viewed from pump end).CDX, 2CDX, 2CDU – Hold the motor shaft with a screwdriver in the shaft end slot. Use a wrench to remove the impeller nut.Slide impellers from the shaft.
SEaL(a) remove the rotating part of the seal by pulling it off the shaft.(b) The stationary seat can be pressed from the casing cover.
CHECK LIST FOR EXAMINATION OF PUMP PARTSIMPELLEr - replace the impeller if any vane is broken, excessive erosion shows, or if labyrinth surfaces are worn. Impellernut should be replaced if damaged.
MECHaNICaL SEaL - Seal face, O-ring and sealing members should be free of burrs and dirt. Complete seal assemblyshould be replaced if not in perfect condition.
SHaFT- Shaft surface under seal must be clean, smooth and without any grooves. It should be replaced if necessary.
VOLUTE aND SEaL PLaTE LabYrINTH SUrFaCES (Wear rings)- If worn, replace the necessary part. If furnished withpressed in wear rings, only the rings need be replaced.
NOTEIf replacement parts are ordered, please furnish the following information to your Ebara distributor:1. reference Numbers2. Description of Pump Part3. Ebara Model Number and Serial Number on the Nameplate.
Warning
CaUTiOnDrainingThe pump and piping should always be protected against freezing temperatures. If there is any danger of freezing, the unitshould be drained. To drain the pump, remove the drain plug at the bottom of the volute, and remove the priming plug tovent the pump. Drain all piping.
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 15(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Position the pump on its end with the shaft up. The work surface should be level, capable of supporting the motor.
Make certain the motor is not connected to a power source. Do not install or assemble the pump on a motor connected to a power source. Serious injury could occur if the motor activates during pump assembly.
Assembling the Pump1. Position the motor bracket on the motor with the mounting feet toward the motor. Cross-tighten bolts to factory recommended
torque of 6 ft. lbs.
2. Using finger pressure only, firmly press the stationary seal seat into the casing cover. Press the seat until it evenly bottomsout in the seat cavity.
3. be careful not to damage the stationary seal.a. Position the casing cover over the the motor shaft.b. align the casing cover holes with the motor bracket holes.c. Firmly press the casing cover into position. (Casing cover may need to be tapped into place by using a rubber mallet.)
4. Ensure all seals have good contact.a. Carefully press the rotating seal assembly onto the motor shaft. Ensure the face of the seal assembly has solid, square
contact with the stationary seal seat.b. The seal retainer must seal against the motor shaft.c. Position the seal spring and seal washer. CDX pumps do not require seal spring washers.
5. Failure to properly install the impeller and the impeller nut could result in the impeller spinning off the shaft in three phase applications (when the motor may start in reverse rotation).For CDU pumps:a. While holding the seal spring in place, thread the impeller clockwise onto the motor shaft.b. Use a screwdriver to hold the motor shaft stationary. Turn the impeller on the shaft until it spins down and bottoms out.
Make certain that the impeller is firmly bottomed and sealed. c. Install the impeller nut onto the shaft in the same manner as the impeller was installed. Make certain the impeller nut
is firmly sealed against the impeller. apply lock tite to the impeller nut before installing.For CDX pumps:a. Position key in keyway on shaftb. Slide impeller onto shaftc. Tighten impeller nut.
6. Position the Viton O-ring over the casing cover. Do not cut nick or damage the O-ring during installation.
7. The discharge can be positioned in the direction desired.a. Position the pump volute casing over the casing cover.b. rotate the discharge to the desired direction.c. align the bolt holes and secure the case to the casing cover with lock washers and cap screws.d. Cross tighten the bolts to 3.4 lbs (factory recommended torque). Overtightening may result in stripping of the motor
bracket threads.
8. Position the mounting base on the pump and secure with cap screws.
9. Place the bolt and lock nut on the back of the mounting base. adjust the bolt height to support the motor and tighten the lock nut to secure the bolt height.
10. rotate the impeller to ensure proper alignment.
CDU/CDX assembly instructions
Warning
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 16(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
assembly instructions – Models 2CDU, 2CDX
For 2CDX start with step # 3.
1. apply thread locker to the shaft extension. Thread shaft extension on to the motor shaft. Tighten to 10Nm ( 7.5 ftlb).
2. attach motor bracket to the motor cross tightening the bolts. 8 Nm (6 ftlbs)
3. Install stationary seal in the casing cover. Press the seal until it evenly bottoms out in the seat cavity.
4. Carefully press the casing cover onto the motor bracket. be sure to align the casing cover bolt-holes with the
bolt-holes in the motor bracket.
5. Carefully press the rotating seal assembly onto the motor shaft. Ensure that the face of the seal assembly has
solid, square contact with the stationary seat. Position the seal spring and spring washer. (2CDX pumps do not
require a seal spring washer.)
6. Install the casing cover o-ring. Do not nick or cut the o-ring.
7. Install key in the location to accept the delivery side impeller. reference the parts list to ensure the proper part
number impeller is in the proper position.
8. Install sleeve and key for the suction side impeller.
9. Install diffuser spacer. be sure to align the diffuser spacer notch with the casing cover spigot.
10. Install the o-ring on the conveyor cover.
11. assemble the conveyor cover being sure to align the casing cover notch with the diffuser spacer spigot.
12. Install the diffuser.
13. Slide the suction side impeller onto the shaft into its proper position. reference the parts list to ensure the proper
part number impeller is in the proper position.
14. Install the suction cover.
15. Thread the self locking nut onto the shaft and tighten
For 2CDU, go to step 16.A For 2CDX, go to step 16.
16. Place casing onto the assembly, aligning the holes of the casing with the holes of the casing cover and the motor
bracket. Thread the casing bolts and crass tighten to 8 Nm (6ft lbs) Go to step 19.
17. Place casing onto the assembly aligning the holes of the casing with the holes of the casing cover and motor bracket.
Thread the M6x 16 bolts into the upper side holes. Thread the M6 X 30 bolts in the lower side holes. Cross tighten
the casing bolts to 8Nm (6 ftlbs)
18. Fit the base onto the bolts protruding from the lower side holes. Using lock washers and nuts secure the base to
the assembly.
19. Install nut and screw in the jack screw position in the base. Set the pump on a horizontal surface and loosen jack
screw until it comes in contact with the bottom of the motor.
20. rotate pump shaft to ensure proper alignment of assembly. Pump shaft should rotate with out rubbing if assembly
is installation is correct.
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 17(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
TROUBLE Pump does not run.
Pump does not pump water. Inadequate quantity.
Overcurrent
Pump vibrates, excessive operatingnoise
Pressurizing application. Pump starts and soon stops
Pump does not stop
POSSIBLE CAUSEFaulty connection of power supply circuit.Wrong wiring of control circuit.bound shaftMechanical seal faces stuck togetherFaulty motor Damage to bearing
Considerable voltage drop.rotation direction reversed.Lack of priming.High discharge head.Large piping loss.Clogged foot valve.Leakage from suction piping.Too high suction lift.Low water level.
Considerable fluctuation of power supplyvoltage.Considerable voltage drop.Low head and overflow rate.Damaged bearing.
beyond rated capacity.below minimum flow.Improper piping.Damaged bearing.Foreign matter clogging cooling fan.
Too limited pressure switch setting.
Leakage in system.Too high pressure setting.
TROUBLESHOOTINGCheck power supply circuit.Correct control circuit.remove cause of obstruction.release seal by turning shaft.repair or replace motor.repair or replace any damaged bearing.
Check incoming power.Correct rotation direction.re-prime the pump.re-examine the plan.re-examine the plan.Clear foot valve suction.Check and repair suction piping.re-install as per instructions.Foot valve in ample immersion.
Check incoming power.Check incoming power.Throttle flow rate at outlet.replace any damaged bearing.
reduce flow rate.Consult distributorSecure piping again.replace any damaged bearing.remove foreign matter.
replace pressure switch to wider range.Check and repair leaks.
reduce max pressure setting to thelower in pressure switch.
MAINTENANCE:The pump does not require special maintenance.The following rules must be observed for safe operation:If the pump is not going to be used for a long period, the pump should be drained of water and flushed with clean water.Where the pump is exposed to freezing temperatures, it should always be left drained when not in use.
*all specifications subject to change without notice.
Troubleshooting
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 18(t) 803 327-5005 • (f) 803 327-5097 rev. 02/12
Chemical Compatibility Chart
Where hot and aggressive liquids are to be pumped, in addition to checking the chemical compatibility, bear in mind that any deviations intemperature, density, and viscosity from the reference data would bringabout variations in terms of power input, hydraulic performance, and suctioncapacity. Make sure in all cases that the power input is not higher thanthe rated power.
*Code Key: 1 = Good 2 = Fair 3=Poor* 4=Not recommendedImportant – Pumpages coded 3 “poor” may result in reduced or unsatisfactoryservice life.
Item Conc. Temp. *Code
No. Pumpage Type Formula % •F •C Level
1 acetic acid Ch3 COOH 10 68• 20• 2
2 ammonium bicarbonate NH4 CO3 10 68• 20• 2
3 ammonium carbonate (NH4)5 CO3 68• 60• 3
4 ammonium chloride NH4 CL 10 68• 20• 3
5 ammonium hydroxide NH4 OH 10 176• <80• 3
6 ammonium nitrate NH4 NO3 5 3
7 beer 1
8 benzilic acid C6 H5 COOH 10 68• 20• 2
9 benzilic acid C6 H5 COOH 68• 20• 2
10 boric acid H3 bO3 5 68• 20• 1
11 boric acid H3 bO3 5 176• 80• 1
12 brine 2
13 butyric acid C3 H7 COOH Wat. Sol. 2
14 Calcium chloride Ca C12 68• 20• 3
15 Calcium nitrate Ca (NO3)2 10 2
16 Calcium phosphate Ca3 (PO4)2 10 212•≤100• 2
17 Citric acid C6 H8 O7 5 68• 20• 2
18 Coffee 1
19 Copper sulfate Cu SO4 5 68• 20• 2
20 Ethylene glycol CH2OH CH7OH 1
21 Fluosilicic acid H2 SiF6 20 68• 20• 4
22 Fruit juices 1
23 Hydrocyanic acid HCN 68• 20• 2
24 Hydrogen peroxide 68• 20• 2
25 Lactic acid C3 H6 O3 5 149•≤65• 3
26 Lactic acid C3 H6 O3 10 68• 20• 2
27 Magnesium chloride MG C12 3
28 Magnesium sulfate MG SO4 68• 20• 2
29 Maleic acid (CHCO2H)2 10 68• 20• 3
30 Milk 1
31 Nitric acid HNO3 20 68• 20• 4
32 Nitric acid HNO3 20 158• 70• 4
33 Oleic acid C18 H34 O2 20 68• 20• 3
34 Oxalic acid (COOH)2 ≤10 68•≤20• 2
35 Oxalic acid (COOH)2 10 158• 70• 4
Item Conc. Temp. *Code
No. Pumpage Type Formula % •F •C Level
36 Phosphoric acid H3 PO4 176•≤80• 3
37 Phthalic acid C6 H4(COOH)2 Wat. Sol. 68• 20• 2
38 Potassium bicarbonate KHCO3 30 68• 20• 1
39 Potassium carbonate K2 CO3 40 68• 20• 1
40 Potassium chloride K CL 10 68• 20• 2
41 Potassium hydroxide K OH 10 176• <80• 2
42 Potassium permanganate KMN O4 68• 20• 2
43 Potassium phosphate KH2 PO4 10 176• 80• 3
44 Potassium sulfate K2 SO4 2
45 Propionic acid CH3 CH2 CO2 H 20 68• 20• 2
46 Propylene glycol CH3 CHOHCH2 OH 60 68• 20• 1
47 Salicylic acid C6 H4 OHCOOH 68• 20• 2
48 Sodium bicarbonate Na HCO3 10 68• 20• 1
49 Sodium carbonate Na2 CO3 140• <60• 1
50 Sodium chloride Na CL 3
51 Sodium hydroxide Na OH <10 140• <60• 2
52 Sodium nitrate Na NO3 10 2
53 Sodium phosphate Na3 PO4 212•≤100• 1
54 Sodium sulfate Na2 SO4 5 140• <60• 2
55 Sulfuric acid H2 SO4 10 68• 20• 4
56 Sulfurous acid H2 SO3 Sat. 68• 20• 3
57 Sulfurous acid H2 SO3 10 68• 20• 2
58 Tannic acid C76 H52 O46 10 68• 20• 1
59 Tartaric acid C4 H6 O6 10 68• 20• 2
60 Tea 1
61 Vinegar 140•≤60• 1
62 Water 230•≤110• 1
63 Water, condensation 1
64 Water, de-cationized 3
65 Water, demineralized 1
66 Water, distilled 1
67 Water, mine 1
68 Water, sea 3
69 Water, thermal 1
70 Wine-Whiskey 1
Model CDU, CDX, 2CDU, 2CDX Ebara End Suction Centrifugal / Two-stage Centrifugal
instructions and Operation
Ebara Fluid Handlingwww.pumpsebara.com 19(t) 803 327-5005 • (f) 803 327-5097 rev. 12/10
Complete enclosed registration Card and return to Ebara international Corporation.
Ebara inTErnaTiOnaL COrPOraTiOnrOCK HiLL, SOUTH CarOLina
COMMErCiaL PUMP/ PrODUCTS LiMiTED WarranTY(EXCEPT MODEL EPPD SUMP PUMPS)
Ebara International Corporation, Rock Hill, SC (“EIC-RH”) warrants to the original purchaser only(“Customer”) that the EIC-RH Commercial Pump/Product (“Pump”) will be free of defects in workmanshipand material for a period of twelve (12) months from the date of installation or eighteen (18) monthsfrom the date of shipment by EIC-RH, whichever comes first, provided that notification of any suchdefect is promptly given in writing to EIC-RH. Customer may be required at EIC-RH's request to verifythat it is the Customer of the Pump and that the Pump was installed and operated in accordance withEIC-RH’s instructions.
EIC-RH’s sole obligation under this warranty will be to repair or replace with a new or reconditionedPump, such Pump as has failed or has been found to be defective during the warranty period, or atEIC-RH’s sole option, to refund to the customer an equitable part of the purchase price. In no eventshall EIC-RH’s cost responsibility exceed the initial purchase price paid by the Customer for the Pump.
EIC-RH shall be liable only for the cost of the Pump, or the cost of repair or replacement of any defectivePump. Customer shall be responsible for labor, cost of removal and installation at Customer’s premises,transportation and insurance costs to EIC-RH and any other incidental costs.
This warranty is void and does not apply if damage is caused by improper installation, improper main-tenance, accident, alteration, abuse, misuse or if the Pump has been disassembled prior to warrantyevaluation without written authorization from EIC-RH.
Warranty service and information for return procedures will be provided by EIC-RH upon receipt ofwritten notice describing the defect or problem to:
Ebara International CorporationWarranty/Claims1651 Cedar Line DriveRock Hill, SC 29730803-327-5005 Phone803-327-5097 Fax
THE FOREGOING WARRANTY IS THE SOLE AND EXCLUSIVE WARRANTY ON THIS PUMP, AND ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY WARRANTY OFMERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED ANDEXCLUDED FROM THE TERMS OF THIS WARRANTY. EIC-RH'S SOLE OBLIGATION IN CASE OF ANY DEFECT WILL BE TO PROVIDE THE WARRANTY SERVICE SPECIFIED ABOVE. THEFOREGOING IS CUSTOMER’S SOLE AND EXCLUSIVE REMEDY, WHETHER IN CONTRACT,TORT OR OTHERWISE AND EIC-RH SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL ORINCIDENTAL DAMAGES OF ANY KIND WHATSOEVER.
Contact your dealer or supplier for more information about other Ebara products
Ebara Fluid Handling
1651 Cedar Line Drive • rock Hill, SC 29730 (t) 803 327 5005 • (f) 803 327 5097 [email protected] • www.pumpsebara.com© 2009 Ebara International Corporation EFHCD(X)U2CD(X)U1204 0212